1880/81, 5pa black & olive, horizontal strip of four, cancelled with bold blue grid cancel and partial Yambol c.d.s., with 5pa black & green block of four and strip of four, each cancelled with neatly-struck green grid cancels, strip of six cancelled with light blue c.d.s. postmarks, a few trivial perf flaws, else a fine and scarce group of used multiples.
